Just confirming so there are no misunderstandings.

Can I remove only the orb flag and leave the spell unlock flag? (You can get deercoy from the orb, but you could also get deercoy from the wand or store)

I believe this is an inherently impossible situation and should not be allowed.

Is it allowed to edit the save file to remove orb flags (spell unlocks)? If this is allowed, you can get some useful spells from orbs every time (Deercoy and Earthquake are useful on all bosses)

I think the use of the Ghost Wand should be banned or categorized separately, in all categories.(including any%) The Hollow Egg exploit measures time including preparation. It is unfair to not measure the preparation time of the ghost wand.

The Game Rules say "No save file manipulation to gain an advantage", but I'm not sure what it means.

What exactly does this prohibit? ・Operation or deletion of ghost wand? ・Manipulation of spell unlock status? ・Manipulation of boss defeat status? (full heal drop or not)

There is a mod that displays a message after the boss dies. https://steamcommunity.com/sharedfiles/filedetails/?id=2944220118

If allowed, I think it's a good idea to use this mod to make confirm the boss is killed.

OK, I understand. Thanks for the answer!

I have a question about the rules. The hitless rule says "No alchemy, even if found by luck", what exactly does this mean?

For example, ・water + Toxic Sludge = water → OK ・Alchemic Precursor → OUT ・Slime + Fire → Slime Mist → ? ・water + Concentrated Mana = Concentrated Mana → ? ・Any metal+ Concentrated Mana = Steam → ? ・Flummoxium + Oil and Blood = Unstable Polymorphine → ?